Research And Implementation Of Workflow Technology Based On .NET

Nowadays, Workflow management system is to have a loose coupling, highly integrated development, web services oriented workflow technology is much concern. The .NET platform have a fairly complete support for web services, the research of workflow technology in the .NET framework has very important significance and value.It is introduced in the paper for the basic knowledge of workflow technology, workflow management system architecture and the specific implementation techniques of the web services oriented workflow management system in the .NET famework. This Paper comes from practical project and further research the main workflow in enterprise business process—approval workflow, it resolves the problem, combined the technology of version control and picture signature, that approval workflow does not automatically make the manuscript signature.This paper presents the design scheme of workflow system based on .NET, the automation of signature is implemented by the simulation of signature in approval file using embedded picture, the validity of approval workflow is verified using the technology of version control. It mainly researchs the process model ,the implementation of key technology in workflow designer ,the structure of workflow engine, the workflow monitor. The workflow task monitor is implemented by .NET remoting in .NET framework, the users can receive the task notice at first time, the workflow processing efficency is improved.This paper researches XML web services in .NET framework and implements the remote data access by means of the web services interfaces, it also designs the interfaces of the database access and the file access. It discusses the connecting limitation when the database is frequently accessed by a large amount of users, the structure model of workflow engine is descriped, the workflow control and the propulsion are performed by the interfaces of web services, therefore the workflow management system can penetrate enterprise firewall in the C/S structure, the distributed application is implemented in the system based on web services.Finally, the workflow management system is designed and implemented based on .NET, and the better running effect is showed. The design method is applied in the practical project, it is practically approved that the design method can meet the management requirement of the easiness, the high efficency and the high automation in the enterprise business.